Seborrheic dermatitis ICD-10-CM codes

Seborrheic dermatitis ICD-10-CM codes

Identify billable ICD-10 codes for seborrheic dermatitis, including clinical signs, subtypes, and related skin conditions.

By Audrey Liz Perez on Aug 8, 2025.

Fact Checked by Ericka Pingol.

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What ICD-10 codes are used for seborrheic dermatitis?

Seborrheic dermatitis is a chronic inflammatory disease that affects the areas of the skin with high sebaceous gland activity, especially the scalp, face, chest, and upper back. It is commonly characterized by flaky scaling and yellow-crusted patches that can appear dry, moist, or greasy.

For accurate diagnosis, targeted treatment, and precise medical billing of this condition, certain specific ICD-10 codes are employed:

L21.9 - Unspecified seborrheic dermatitis

This code is used when the specific subtype of seborrheic dermatitis isn't explicitly mentioned. It offers a broad classification, covering all manifestations not specified elsewhere.

L21.8 - Other seborrheic dermatitis

This code caters to those conditions that fail to align with other defined seborrheic dermatitis codes. It accommodates unique cases falling outside the typical categorizations.

L21.0 - Seborrhoea capitis

This specific code relates to seborrheic dermatitis that predominantly affects the scalp, often resulting in dandruff or scaly patches.

L21.1 - Seborrheic infantile dermatitis

As the name suggests, this code is reserved for infant-related cases. It encompasses conditions seen in babies, often called cradle cap.

Each code helps healthcare providers accurately diagnose, document, and treat seborrheic dermatitis while facilitating precise medical billing.

Which seborrheic dermatitis ICD codes are billable?

All the codes listed above are billable diagnosis codes in ICD-10-CM. They can be used to indicate seborrheic dermatitis as a primary or secondary diagnosis on insurance claims, provided they are properly documented.

Clinical information

Seborrheic dermatitis is a chronic, recurrent skin disorder marked by red, flaky, and itchy skin, especially the scalp, face, and chest. Dandruff is a common manifestation, and some patients report stinging or burning sensations.

It may overlap with contact dermatitis due to cosmetics or unknown substances and can be aggravated by stress, immune conditions, or neurological disorders like Parkinson’s disease. In some cases, it presents as part of broader skin disorders with unknown etiology or occurs due to drugs that affect hormonal or immune function. Occasionally, inflammation reaches the subcutaneous tissue, especially in untreated or severe cases.

Proper diagnosis helps distinguish it from conditions like allergic contact dermatitis due to cosmetics or adhesives. Though not life-threatening, it can affect quality of life, making accurate documentation vital for treatment and billing.

Synonyms include

  • Seborrheic eczema
  • Seborrhea
  • Seborrheic psoriasis
  • Cradle cap (in infants)
  • Dandruff
  • Skin disorder
  • Scalp eczema
  • Seborrheic dermatitis, unspecified
  • Seborrheic rash
  • Seborrheic facial dermatitis
  • Chronic seborrheic dermatitis
  • Irritant contact dermatitis
  • Allergic contact dermatitis
  • Unspecified eczema

Commonly asked questions

A Seborrheic Dermatitis ICD code should be used when diagnosing or treating a patient with this skin condition. It aids in precise documentation and is essential for insurance billing purposes.

Common treatments include topical antifungal medications, medicated shampoos, creams, or ointments containing corticosteroids or salicylic acid.

A diagnosis code for Seborrheic Dermatitis is a standardized code used in healthcare to classify and record this particular skin condition. It aids in accurate diagnosis, treatment planning, and medical billing.

Related ICDs

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